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Re: [Qemu-discuss] linux: ioctl(KVM_CREATE_VM) failed: 12 Cannot allocat

From: Ken Moffat
Subject: Re: [Qemu-discuss] linux: ioctl(KVM_CREATE_VM) failed: 12 Cannot allocate memory
Date: Fri, 27 Feb 2015 04:22:26 +0000
User-agent: Mutt/1.5.23 (2014-03-12)

On Fri, Feb 27, 2015 at 02:12:28AM +0000, Ken Moffat wrote:
> I had kvm working fine (i686 guest) from a new x86_64 host system -
> after fixing up some Xorg server issues - and then I decided to
> create a new x86_64 guest (this is linuxfromscratch, so using an old
> guest to build a new one).  But now when I try to start qemu with
> any of my images, even one which worked a couple of hours ago after
> I last reran 'startx', I get:
> ioctl(KVM_CREATE_VM) failed: 12 Cannot allocate memory
> failed to initialize KVM: Cannot allocate memory
> and google produced nothing useful about where I need to look.  This
> is linux-3.19.0 and qemu-2.2.0 (and linuxfromscratch-7.7-rc /
> current BLFS).  Any pointers, pretty please with sugar ?
 Eventually, I finished the application tests I had been doing, and
decided to reboot to see if that would fix it.  But before rebooting,
I killed Xorg with ctrl-alt-backspace (yes, I'm old school ;) and
then ran 'startx' again : now qemu is working once more.

 Very weird, I was starting to think it might be a kernel
regression, but apparently not.  Any pointers for what the error
message means would still be appreciated.

Nanny Ogg usually went to bed early. After all, she was an old lady.
Sometimes she went to bed as early as 6 a.m.

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